DSC light comes on with hard accelleration
#1
DSC light comes on with hard accelleration
my MCS (19% and CAI and injectors) finally is past the 1200 mi. break-in so i went pedal to the metal thru the gears and my DSC light came on and stayed on. i pulled over and shut off the car and it went away. the next day i tried it again and it came on and stayed on also. has anyone experienced this?
#3
#7
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#11
Here's the deal guys: I get the same thing. It started when the temps got cold. If I floor it and run it to redline, the DSC light will come on and stay on for the rest of the trip (until I shut off and restart). Basically, the DSC turns itself off. Apparently, the MCS has a MAP sensor that triggers this when the boosts hits around 18lbs - which is a reading that I guess the MINI ECU doesn't recognize - it's off the chart in other words. It's basically a harmless thing except you won't have DSC for the rest of the trip. Yet most people with mods turn it off anyway so I guess it doesn't matter. :smile:
Hope that helps!
Hope that helps!
#12
Originally Posted by greatgro
Here's the deal guys: I get the same thing. It started when the temps got cold. If I floor it and run it to redline, the DSC light will come on and stay on for the rest of the trip (until I shut off and restart). Basically, the DSC turns itself off. Apparently, the MCS has a MAP sensor that triggers this when the boosts hits around 18lbs - which is a reading that I guess the MINI ECU doesn't recognize - it's off the chart in other words. It's basically a harmless thing except you won't have DSC for the rest of the trip. Yet most people with mods turn it off anyway so I guess it doesn't matter. :smile:
Hope that helps!
Hope that helps!
#13
Thanks Greatgro
I had a feeling that it was a response to exceeding the parameters of the MAP. The ECU does not know what to do with that reading so it lights the DSC light to tell me there is something wrong. Since you seem knowledgeable regarding this matter I assume that the MAP can not be changed and i will have to live with the light if I exceed the MAP. I can live with that. The car really screams, much faster than I anticipated.
#14
Originally Posted by berky
I had a feeling that it was a response to exceeding the parameters of the MAP. The ECU does not know what to do with that reading so it lights the DSC light to tell me there is something wrong. Since you seem knowledgeable regarding this matter I assume that the MAP can not be changed and i will have to live with the light if I exceed the MAP. I can live with that. The car really screams, much faster than I anticipated.
https://www.northamericanmotoring.co...2&page=1&pp=25
#15
I have only the %15 pulley and the superchips but I have the same thing. I went to the dealer and asked what caused this problem.
The answer was something about the DSC can not get info from the ECU. And they said that the solution for this is the new software.. I will try what they say.. If the result is positive, I'll post em...
The answer was something about the DSC can not get info from the ECU. And they said that the solution for this is the new software.. I will try what they say.. If the result is positive, I'll post em...
#16
Originally Posted by Cupid
And they said that the solution for this is the new software.. I will try what they say.. If the result is positive, I'll post em...
Anyway....I HIGHLY recommend you stay away from the new software!
#19
Also when pressure exceeds a certain point it can pull up DTC P0108 "Map pressure circuit high" You can reset it with scan tool but will come back as soon as you exceed it again. Replacement sensors (upstream or downsream)
doesnt cure it. Also is the same with std. MTH or other software.?
Interestingly the manual specifies the sensors maximum pressure sensing as
36psi absolute.(therefore 21psi gage pressure) perhaps the ecu itself limits traction above 18psi even though the sensor is happy to carry on?
Regards Roland
doesnt cure it. Also is the same with std. MTH or other software.?
Interestingly the manual specifies the sensors maximum pressure sensing as
36psi absolute.(therefore 21psi gage pressure) perhaps the ecu itself limits traction above 18psi even though the sensor is happy to carry on?
Regards Roland
#20
dsc light
i experienced the same thing dsc comes off and service light comes on as well. it happend that some of my wires on the coil was loose. the ecu will disengaged dsc when it senses that not all of the wires are connected well that what i think??? i reattached all of my wires and plugs firmly and it went away.
#22
The only option would be to replace the MAP sensor with one which supports a higher boost pressure threshold and then get a custom remap to take best advantage of this. I am getting a Subaru STI map sensor for my car which shares the same dimensions and voltage (5V) as the stock mini/Bosch item. I'll let you know how I get on
Cheers,
Henry
Cheers,
Henry
#23
I had the same issue where the DSC came on and stayed on. I wasn't under hard acceleration load during the time I started the car to the point where I saw the light on. I tried turning it off, but it stayed on, until I restarted the car. The road condition was wet, but not overly slippery and I wasn't spinning the wheels at all, but the light came on.
I did check the air pressure after letting the car cool down, the right rear tire was about 3-4lbs lower then the other 3 tires, that's the only thing I noticed. No tire pressure monitor light.
I did check the air pressure after letting the car cool down, the right rear tire was about 3-4lbs lower then the other 3 tires, that's the only thing I noticed. No tire pressure monitor light.
#25
As I've said before thats the problem with fly by wire. Some do and some don't. I have all the mods and none of the problems. Not rubbing it in just stating facts. You build two cars the same day one has little glitches the other doesn't. Modern technology anin't it great. It is if you have one that works it ain't if you have one that don't.